So how can Nitrogen in the Air, be turned into Nitrates in the Soil?

1. Decomposers break down Proteins, and Urea, into Ammonia [NH₃] which then makes Ammonium Ions. Nitrogen from the Organisms is Recycled 2. Through Nitrogen Fixations, which is simply the process from having Nitrogen in Air, to Nitrates: -Lightning is a way, because of the amount of Energy in the Bolt, Nitrogen reacts with Oxygen and becomes Nitrates -Nitrogen-Fixing Bacteria, found in the roots of Legume Plants, and the Soil